When using a cable to charge an iPhone, the screen \"This accessory is not supported\" prompt is usually due to the use of a damaged or non-Apple certified cable, it may also be due to poor contact or voltage problems with the charging cable or the phone's charging port.
1. Under normal circumstances, when using a data cable to charge an iPhone, the prompt \"this accessory is not supported\" appears on the phone screen because a cable that has not been certified by Apple is used. To resolve the problem, replace the charging cable with an MFi certified cable.
2. When the data cable connector or mobile phone charging port is dirty and damaged, there will also be a \"do not support this accessory\" prompt. At this point, you can try to clean up the data cable interface and mobile phone charging port.
3. In the use of non-original or non-MFI certified charging head may also appear [do not support this accessory] prompt, usually replaced with the original charging head or MFi certified charging head can be solved.
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